Scabbling-machine.



PATENTBD MAR; 5, 1907.

4 SHEETS-SHEET Vl- J. M.v z M. H. OWENS. SGABBLING MACHINE. APPLIOATION FILED sB'PT.1s.19o4.

PATENTED MAR. 5, 1907.

J. M. & M. H. OWENS. SGABBLING MACHINE. PPLIOATION FILED sEPT.15,1so4.

4 SHEETS-SHEET 2.

@b ww hb h6. :Nm Kw Nh. hh, www. www RN@ WMM @awo ATENTED MAR. 5, 1907.

J.l M. & M. H. OWENS. ySMAMBLMWG MACHINE.

APPLICATION FILED SEPT. 15,1904.

4 SHEETS-SHEET 3.

514 ventozv M mnlmlunm PATENTED MAR. 5, 1907. .L M. & M. H. OWENS. SGABBLING MACHINE. APPLIOATION FILED sEPT.15,19o4,

4 SHEETS-SHEET 4.

UNITED sTATEs PATENT oEEioE.

JOHN M. OWENS AND MACK H. OWENS, OF OOLITIO, INDIANA.

SCABBLlNG-NIACHINE.

Specification of Letters Patent.

ratented Maren 5, 1907.

Application filed September 15,1904. Serial 110.224,577.

To @LZ whom, it Netty concern:

Be it known that we,JoHN M. OWENS and MACK H. OWENS, citizens of the United States, residing at Oolitic, in the county of Lawrence and State of Indiana, have invented new and useful Improvements in Scabbling-Machines, of which the following is a specification.

This invention relates generally to stoneworking machinery, and particularly to a scabbling-machine.

As is well understood by the trade, the stone as it comes from the ground is irregular and uneven and before shipment has to be reduced to a size commensurate with the smallest dimensions that is squared up into block form. This squaring, known as scabbling, has heretofore been manually performed by the usual stone-pick, requiring considerable time and labor.

It is the object of the present invention to dispense entirely with the manual scabbling, thereby saving the expense and time incident thereto.

The invention therefore consists in a machine adapted to receive the stone as mined and present the same for theoperaticn of one or more scabbling-disks.

The invention further consists in means for automatically feeding the stones to the disks in a manner to maint ain the mc st effective operation of the latter, the feeding being intermittent and arranged to hold the stones stationary during a partial operation of the disk.

The invention further consists in providing scabbling-disks of particular construction and in automatically feeding said disks toward the stone to be operated upon.

The preferred embodiment of the details of construction of our improved scabbling-machine will be described in the following speciiication and are clearly illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a scabbling-machine constructed in accordance with our invention. Fig. 2 is a plan view of the same, the platen, track, and cooperating mechanism being omitted. Fig. 3 is a transverse section of the machine, taken just forward of the shaft carrying the upper scabbling-disk, parts of the machine being shown in elevation. Fig. 4 is a view in'elevation showing the scabbling-disk frame and its supporting-bed. Fig. 5 is an enlarged section through one of the scabbling-disks. Fig. 6 is of the disk-frame.

a sectional view illustrating the reversible ratchet lever and gear. Fig. 7 is a secticnal view on the line 7 7, Fig. 6. Fig. S is a front elevation illustrating the means for supporting the conveyor-belt. Fig. 9 is a side elevation of the same.

Referring to the drawings, wherein like reference characters represent .like parts throughout the several views, 1 represents the bed-plate for the scabbling-disk frame, said plate having upwardly-extending side Walls 2, with inwardly-projecting iianges 3 to provide grooves or recesses for the reception Said frame comprises upright members 5, two in number and spaced apart by' suitable tie-rods to support the mechanism for operating the scabbling-disks. The members 5 near their lower edges are recessed at 6 to provide laterally-projecting fianges 7 and 8 to contact, respectively, with the upper and lower surfaces of flange 3 of the bed-plate, said flanges being seated in the recesses 6, as clearly seen in Fig. 4. This construction provides for the movement of the disk-frame longitudinally of the bed as may be desired to adjust the disks with relation to the stone, as hereinafter described.

rl'he frame members 5 are approximately of the outline illustrated in Fig. 4, having an upper bearing edge 9 and a loner bearing edge 10, the frarres being preferably arranged so that said lower bearing edge is toward the rear of the machine. Each of said bearingedges supports a bearing 11, in which bearing-shafts 12 are supported. Between the members 5 the shafts 12 are each provided With a gear 13, said gears meshing to transmit motion from one of said shafts 12, which is power-driven, as hereinafter described, to the other shaft 12. 'lhe gears 13 are of the sarre size to provide for similarly driving the shafts 12; but as said gears directly interrnesh said shafts will be driven in opposite directions.

A scabbling-disk 14 is fixed on one'end of each of the shafts 12 and comprises a body 15, formed with a series of surface apertures 16. The apertures 16 project practically through the body and are adapted to receive the scabbling-tool 17. The tools are arranged to project from the body in inclined directions and are preferably arranged in three consecutive rows whereby to effectively search every part of the stone presented to the disk. It is understood, if desired, the tools may be arranged in any relation to the IOC) IIO

disk necessitated by the particular work. The small channels or openings 18 extend from the apertures 16 to the opposite surface of the disk to permit the insertion of a suitable instrument to drive the tools from the apertures when desired. It is understood that any form of scabbling-tool desired may be used and that the tools may be arranged in position and number with due regard to the particular work in hand. The disks may be arranged for removable connection with the shafts 12 to provide for the use of varyingsized disks when desired.

Extending transversely or at right angles to the bed-plate 1 is the platen bed-plate 19, formed with longitudinallyextending grooved ways 20. The bed-plate 19 is arranged adjacent the end of bed-plate 1 and is centraly cut away or cored out, as at 21, to provide for the operation of parts hereinafter described. A platen 22 is mounted for longitudinal movement onthe bed 19 being formed on its lower surface with depending ribs 23, ar-

` ranged for cooperation with the ways 20. By

preference the ways 2O are angular in transverse section, the ribs 23 being similarly formed, as clearly shown in Fig. 3. The platen 22 comprises a rectangular plate of suitable dimensions to support the stone block and is formed with a series of verticallyextending holes or openings 24, arranged to receive suitable posts with which to brace and hold the stone block upon the platen. rl`he platen is also formed with openings 25, in each of which is movably supported a plate 26, arranged for adjustment transversely of the platen through the medium of screw-rods 27, the free ends of which project beyond the edge of the platen and are squared to receive a Suitable wrench or the like. The plates 26 are movable transversely of the platen and are provided insuitable numbers to properly support the stone blocks, it being understood 'that the block rests directly upon the plates 26, and by the longitudinal adjustment'of the latter the stone block may be adjusted toward or from the scabbling-disks.

An auxiliary platen or carriage 28 projects laterally from the platen 22, being preferably bolted to the edge of the latter. rPhe car- .riage is preferably of skeleton form, comprising a side bar and cross-bars and is designed to provide a support for blocks of stone of greater cross dimension than the width of the platen 22. The free edge of the carriage is supported in any desired manner, preferably by the ordinary flange-wheels 29, movably lengthwise a track-rail 30. An additional support for the platen 22 is provided beyond each end of the bed 19, such support comprising grooved rollers 31, supported in bearings 32, the groove in the rollers being shaped, of course, to correspond with the groove in the ways 20 and the rollers being arranged 1n almement with said ways, whereby to receive the ribs 23 on the platen and support the latter when moved in either direction beyond the end of bed 19.

The machine is driven from a power-shaft 33, supported in suitable hangers, as shown in Fig. 1. A belt 34, leading from a beltwheel 35 on the power-shaft, passes around a belt-wheel 36, supportedon a shaft 37, mounted adjacent the disk-frame, the end of shaft 37 contiguous said disk-frame being provided with a small gear 38. A shaft 39, supported at one end in a bearing 40 and at the opposite end in one of the members 5 of the diskframe, is provided with a gear 41, arranged to mesh with the gear 38. The shaft 39 is also provided contiguous the frame member 5 with a small gear 42, arranged to mesh with the gear 43, mounted on the projecting end of one of the disk-shafts 12, preferably the upper shaft. The gears 38 and 42 are of less diameter than the gears 41 and 43, providing for a high speed of the scabbling-disks from a comparatively low-speed power-shaft, as will be evident.

The shaft 37, intermediate belt-wheel 36 and gear 38, is provided with an additional belt-wheel 44, from which a belt 45 leads to 47, supported in suitable bearings, as shown. The shaft 47 is provided on one end with a disk or wheel 48, eccentrically mounted upon the disk and supporting an arm "49, preferably by means of a collar or sleeve encircling the periphery of disk 48. The free end of arm 49 is connected at one end to the ratchetlever 50, the opposite end of which lever is arranged for engagement with aratchet 51, 'fixed to a shaft 52, suitably supported in bearings 53. The ratchet 51 is provided with circumferential plane peripheral edges' 54 and with ratchet-teeth 55 intermediate said edges. The cooperating end of lever 50 is bifurcated, the ends of the branches being provided with collars or rings 56 to encircle the plane surfaces of the ratchet. An upper pawl 57 and a lower pawl 58 are pivotally supported intermediate the branches of lever 50 the operative ends of saidpawls ratchet-teeth 55, the opposite ends of the pawl being bent outwardly from the horizontal, as at 59, so that said end 59 will project above the plane of the lever 50 when the particular pawl is in engagement with ratchetteeth. A spring 60 is secured to the pawls 57 and 58, being arranged contiguous the ends 59 and constructed to force the pawls into engagement with ratchet-teeth when free to act. A latch 61 is slidably secured to the upper surface of the lever adjacent the bifurcation therein and is designed to be moved over the end 59 of the pawl 57 to prevent engagement of said pawl with the ratchet-teeth when desired. A similar latch 62, arranged for similar operation, is slidably another belt-wheel 46, mounted upon a shaft ICIO .TIO

being arranged for engagement with the connected to the lower side of the lever 50. As pawl 57 is mounted near the upper surface of the lever and pawl 58 is mounted near the lower surface of the lever, the operative end of the pawls are arranged for engagement with diainetrically opposite portions of the ratchet-wheel. Hence coperative engagement of pawl 57 with the rathet-teeth will move shaft 52 in one direction, while engagement of paw l58 with ratchet-teeth will move shaft 52 in the opposite direction. As either pawl may be readily locked from engagement with the ratchet-wheel, it will be evident that l have provided means for driving shaft 52 in either direction from the continuously-driven power-shaft.

The free end of shaft 52 is provided with a chain-wheel or sprocket 63, from which a chain 64 leads to a second sprocket 65, loosely mounted Nupon a shaft 66, supported in suitable bearings 67 in rear of the platen 22, the shaft being of a length to extend to a point about coincident with the longitudinal center of the platen. A clutch 68 is provided on shaft 66 and arranged to engage sprocket 65 when desired to drive said shaft 66 from the sprocket. The clutch may be of any -desired construction, as such forms no material part of the present invention.

The platen 22 is arranged to be fed gradually and intermittently lengthwise its bed 19 to suitably present the stone blocks vto the scabbling-disks, and such feeding mechanism in its preferred form comprises a feedscrew 69, arranged longitudinally of the platen 22 and supported in suitable bearings 70, as shown. The screw is of a length to feed the disk wholly beyond the scabblingdisks in either direction, whereby to present the entire surface of any stone supported by the platen to the scabbling-disks. The screw preferably extends longitudinally of and within the plane of the recess portion 21 of the bed 19 and is operatively connected with the platen 22 through the medium of depending ears or nuts 71, secured to the platen, said ears or nuts being of course Athreaded interiorly to cooperate with the threads on the feed-screw. The end of the feed-screw contiguous shaft 66 is provided with a beveled gear 72, arranged to mesh with a similar gear 7 3 on the end of shaft 66. By this construction the revolution of shaft 66 will feed the platen transverse or across the face of the scabbling-disks, and such movement of the platen will be gradual and continuous, as will be evident.

It is also essential in a machine of this character that provision be made for feeding the scabbling-disk frame toward the platen in order that said disks may be regularly advanced to their work. A feeding mechanism for this purpose is clearly illustrated in Fig. 1, comprising a frame 74, in which is mounted in vertical alinement two shafts 75 tion.

and 76, each carrying a gear 77 and 78, respectively arranged to interrnesh, as shown. 'lhe upper shaft 75 projects beyond the frame and is provided with a belt-wheel 79, driven by a belt 80, leading from belt-wheel 81 on shaft 33. Friction-disks 82 are fixed upon each of the shafts 75 and 76, as clearly illustrated in Fig. 1. The frame 74 is pivotally supported in standards 83, whereby to permit said frame to be rocked in either direction to suitably feed the disk-frame, as hereinafter described. A feed-screw 84, having a threadedend for engagement with a threaded opening 85 in the adjacent member 5 of the scabbling-disk frame, is provided on its end remote from said frame with a friction-Wheel 86, the arrangement being such that said wheel 86 is adjacent to and designed to be frictionally engaged by either of the disks 82.

From the construction described it will be seen that the shafts 75 and 76 are driven in reverse direction and that by suitable rocking of the frame 74 either of the disks 82 may be brought into frictional engagement with the wheel 86, driving said wheel and feeding the scabbling-disk frame longitudinally of its bed in the direction desired.

87 and 88 represent loose belt-wheels on power-shaft 33, from which belts 89 and 90 95 lead to belt-wheel 91 92, fixed on shaft 66. A .fixed belt-wheel 93 is arranged on the power-shaft intermediate the loose beltwheel 87 88, being adapted to receive and drive either of the belts 89 or 90, the former of which is a direct belt, while the latter is a cross-belt. This construction provides for the quick return of the platen 22, it being understood that the clutch 68 is thrown out vto disengage sprocket 65 from shaft 66 and the proper belt 89 or 90 shifted to the fixed beltwheel 93, thus rapidly revolving the feedscrew 69 and correspondingly moving the platen.

To provide for the convenient disposition of the chips scabbled from the stone, we arrange a conveyer 94, arranged to travel over horizontal idlers 95, with its ends held between inclined idlers 96, whereby to give the conveyer a concave or cup-shaped forma- These idlers are supported on the machine-floor 97, which support depending hangers 98, arranged to revolubly support at their lower ends a shaft 99, carrying a series of idlers 100, on which the conveyer rests in its return movement.

The conveyer is arranged to operate intermediate the disk-frame and the platenthat is, longitudinally beneath the scabblingdisks. lf desired, the conveyer may discharge into a suitable elevator or dump its load through an opening 101, formed in the floor-support for the apparatus, in which latter event of course the conveyer will pass over a pulley beneath said floor-support and IOO ICS

return over the idlers 100, as before described,

providing an endless conveyer arranged to receive the chips and convey them from the machine.

Assuming the parts arranged and constructed as above described, the operation of our improved scabbhng-maclnne is as i'ollows: rlhe rough block of stone as mined is placed upon the platen 22, resting upon the plates 26. The latter are adjusted longitudinally through operation of the screw-rods 27 to position the edge of the block to be operated upon slightlyT beyond the edge of the platen adjacent the. scabbling-disk frame.

Suitable posts or uprights are inserted in the openings 24 in the tioned block. The scabbling-disk frame is manually moved lengthuise its bed to ar range the scabbling-disk in close proximity to the edge of the stone block, it being understood that the platen 22 is at either eX- treme of its travel.

platen to brace the posi- 4 The various belts are set in motion by the power-shaft and the 1 the exit-path of said tools are traveling over clutch 68 thrown in to engage sprocket G5 w ith shaft 66. The lever 83 or the scabblinge disk feed mechanism is moved to cause an engagement of one of the disks S2 with the friction-wheel 86. Through operation of the shaft 66 feed-screw 69 is revolved, feeding the platen intermittently transverse or across the face of the scabbling-disk frame, while the latter is, through the operation of its feeding mechanism, gradually and continuously advanced toward the platen. It is understood, of course, that the properpawl 57 or 58 has been previously arranged forengagement with the ratchet 5l to drive the shart 66 in the proper direction to feed the platen across the face of the scabbling-disks to chip the stone block, as ill be evident, the operation continuing until the rough block is smoothed down or squared, as desired.

It will be noted that the shaft 66 may be readily driven in either direction by simply locking either pawl 57 or 5S out of operative engagement n ith the ratchet 5l, thus providing for intermittently feeding the platen with the stone disk in either direction across the face of the scal' blingdisks, the direction of feed being wholly immaterial as regards the scabbling-dishs, for the latter revolve in opposite directions.

The tools of the disks, which may he of any desired form, are preferably seated in the disks at varying angles with relation to the disk-surface and irregularly located on said surface to provide for thoroughly searching all parts of the surface of the block operated i Il operate beyond the opposed parallel edge of i l chipping stone which operates by completing its work at the edge of the stone a chipping of said edge is practically certain to result. A construction by which this result is wholly avoided is the main characteristic of the present machine, it being noted from the I construction that one of the disks operates from the lower edge of the stone and the other operates from the upper edge thereof. By this arrangement each of the disks operates from one edge of the stone and does not the stone. By this arrangement the tools of the disk working from above practically complete their Work midway of the stone, while the tools working from below also complete their work midway of the stone, meeting and coinciding with the scabbling-grooves formed by the disk working from above. It will be further noted that the disks revolve in opposite directions, so that the tools of the disk working from above are cutting into the stone in advance of their exit-point, so that is claimed as new is- 1. A scabblingmachine comprising a power-shaft, a frame, means operative by said power-shaft for adjusting the frame,

scabbling-disks revolubly mounted on the frame, a stone-carrying platen movable relative to the frame, and means operative by the power-shaft for intermittently feeding said platen.

2. A scabbling-machine comprising a power-shaft, a frame, means operative by said power-shaft for adjusting the frame, scabbling-disks revolubly mounted on the frame, a stone-carrying platen movable relative to the frame, and means operative by the power-shaft for intermittently feeding said platen, said means being reversible to permit intermittent feed of the platen in either direction.

3. A scabbling-machine comprising a frame-bed, a frame slidable on said bed, scabbling-disks mounted in different vertical planes on said frame, means carried by the frame for simultaneously operating said disks in reverse directions, a platen-bed formed with a recess and secured independently of the frame-bed, a platen mounted for longitudinal movement on said bed, and an intermittently-driven feed-screw connected with the platen and operative in said recess formed in the platen-bed.

4. A scabbling-machine comprising a power-shaft, a frame-bed, a frame mounted on said bed, means operated by the powershaft Jfor moving the trame on the bed, scabbling-disks mounted on the frame, means operated by the power-shaft for simultaneousl y and reversely operating said scabblingdisks, a platen movable relative to the frame, and means operated by the ower-shaft for intermittently feeding said p aten.

5. A scabbling-machine comprising a movable stone-support platen, a trame adjustable toward and away from the platen and duplicate scabbling means supported on the` frame and operating in reverse directions, said means operating at respectively different heights relative to the surface of the platen, and one of said means being arranged to extend below the surface of the platen.

6. A scabbling-machine comprising an intermittently-driven platen, a trame adjustable at right angles relative to the platen, duplicate scabbling means having a iixed operative relation to said frame, said means being respectively mounted at diierent heights relative to the surface of the laten, and one of said means being arrange in advance of the other relative to the direction of movement of the platen, and means for operating the scabbling means in relatively reverse directions.

7. A scabbling machine comprising a platen, a frame adjustable to and Jfrom the platen, scabbling-disks mounted on the platen and geared Jfor operation inV reverse directions, and tools projecting from the face of each of .said disks, the path of movement of the tools of one of said disks extending below the surface of the platen.

8. A scabbling machine comprising a platen, a frame adjustable to and from the platen, duplicate scabbling means supported on the i'rame and operated in reverse directions, the path of movement of one of said means extending below the surface of the platen, the path of movement of the other oi said means extending toward the platen below the upper limit of the path of movement of the first-noted means.

9. A scabbling-machine comprising a platen, a frame adjustable to and from the platen, duplicate scabbling means supported on the frame and operating in reverse directions, the operative paths of movement of the respective means overlapping between the respective upper and lower edges of the stone being scabbled, and the path of movement of one of said means extending below the surface of the platen.

10. A scabbling-machine comprising a platen, a frame adjustable to and from the platen, scabbling disks supported by the frame and geared for movement in reverse directions, scabbling-tools carried by the respective disks, the path of movement of the tools of one disk extending below the surface of the platen, and the path of movement of the tools of the other disk extending below the highest point of the path of movement of the tools of the irst disk.

In testimony whereof we affix our signatures in presence of two witnesses.

JOHN M. OWENS. MACK H. OWENS. Witnesses "t OTT SExsoN, LEVI A. SMALLwooD. 

